Today in History - August 12

August 12

Today's Stories:

Mr. Edison’s Phonograph

August 12, 1877, is the date popularly given for Thomas Alva Edison’s completion of the model for the first phonograph, a device that recorded sound onto tinfoil cylinders. It is more likely, however, that work on the model was not finished until November or December of that year, since Edison did not file for the patent until December 24, 1877.

While working to improve the efficiency of a telegraph transmitter, Edison noted that the tape of the machine gave off a noise resembling spoken words when played at a high speed. This caused him to wonder if he could record a telephone message. Edison began experimenting with the diaphragm of a telephone receiver by attaching a needle to it. He reasoned that the needle could prick paper tape to record a message. His experiments led him to try a stylus on a tinfoil cylinder, which, to his great surprise, played back the short message he recorded, “Mary had a little lamb.”

Edison’s discovery was met first with incredulity, then awe, earning him the moniker “The Wizard of Menlo Park.” The sound recording industry, which evolved from Edison’s invention, soon emerged as a source of popular entertainment as recordings of concerts, comedic sketches, opera and other performances were made available to the American public to play on their phonographs.

Read the August 31st Today in History feature on Edison’s kinetoscope, the forerunner of the motion-picture film projector. Search the Today in History collection on the keywords inventor or invention to find more features on creative Americans including Alexander Graham Bell, Samuel F. B. Morse, Elias Howe, and Henry Ford.